Window construction.



L. M. CARL.

WINDOW CONSTRUCTION.

APPLICATION FILED MAY 16, 1913.

Patented Jan. 5, 1915.

THE NORRIS PETERS CO. PHOTO LITHQ. WAS HHHHH um. E1v C.

lUltillZflEl) LOUIS M. CARL, OF CHICAGO, ILLINOIS, ASSIGNOR O1? C NE-FOURTH TO MIGHAEL' JACOBS, ONE-FGURTH TO JOSEPH MEIER, AND SHE-FOURTH T0 ELIZABETH CARL, ALL OF CHICAGO, ILLINOIS.

WINDOW CONSTRUCTION.

Application filed May 16, 1913.

To all whom it may concern:

Be it known that 1, Louis M. CARL, a citizen of the United States, residing in Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Window Construction, of which the following is a specification.

This invention relates to improvements in window construction.

One object of the invention is to provide a window construction in which the sashes are slidable within an ordinary frame, said sashes and frame being provided with means whereby the sashes may be swung out from the frame on the inner side thereof about pivots carried by the sashes, said means being so arranged that the parts are automatically or self-locked to prevent being raised by the sash weights when the sashes are swung out from the frame.

Another object of the invention is to provide a window construction, having the characteristics above stated, in which the pivot-forming members and,locking means are readily attachable to ordinary window constructions now inuse.

T he invention furthermore consists in the improvements in the parts and devices and in the novel combinations of the parts and devices herein shown, described or claimed.

In the drawing forming a part of this specification, Figure l is an outside elevation of a window construction embodying my improvements. Fig. 2 is a vertical. section taken on the line 2-2 of Fig. 1. Pi g. 3 is a horizontal section taken on the line 83 of Fig. 1. Fig. 4: is an enlarged detail section of one side of the window frame taken on the line i-a of Fig. 2. Fig. 5 is an enlarged, broken, side elevation of the upper and lower sashes; and Fig. 6 is a detail, part elevation, part section, of one of the window sashes showing particularly the method of attaching the weight cords to the sash.

In said drawing the frame of the window construction is designated generally by the reference A, said frame having slidable therein upper and lower sashes B and C, respectively, the same being slidable in guides 10 and 11 of the frame, the latter being sepanted by a parting strip 12, the length of said strip being such that when the upper sash B is in its lowermost position Specification of Letters Patent.

Patented Jan. 5, 1915.

Serial No. 767,869.

it may be readily swung out of the frame without interference from said strip. On each side of the window frame, on the inerior thereof, is a detachable strip 13, the same being held in place by thumb screws or other suitable means 1%. The sashes E and O are provided with beveled transversely extending members 15 to form a tight connection therebetween when the sashes are in their upper and lower positions, respectively, as shown most clearly in Fi g. 5.

Each. sash. is provided at its lower corners with removable angle plates 16 (see Fig. 6), said plates being made flush with he side and bottom surfaces of the sash and each having a laterally extending, angular, pivot-forming member 17 arranged as shown most clearly in Fi g. 5. These pivot-forming members 17 slide in grooves 18, which eX- tend longitudinally of the guides 10 and 11, said grooves being also adapted to receive the weight cords 19 secured to the sashes as hereinafter described, said weight cords passing over pulleys 20 and having balance weights 21 attached thereto as is usual. The lower ends of the weight cords 19 pass through holes or perforations 21 formed in the angle plates 16 in the angle between the sides of the pivot-forming member 1.7, said cords having knots by which they are attached as will be understood.

The guides 11, on opposite sides of the frame, are provided at their lower ends with removable plates 22, each of said plates having a relatively elongated notch 23 therein with which are adapted to engage the pivotforming members 17 on the lower sash C when the latter is in its lowermost position and is swung out of the frame after the members 13 have been removed from the frame. The guides 10, at their lower ends, are similarly provided with removable plates 2%, having notches 25 therein, the latter being located at a somewhat higher level than the notches 28 and cooperating with the pivot-forming 'members 17 on the upper sash B when the latter is pushed down and swung out to the position shown in dotted lines in Fig. 2.

Whenever it is desired to swing the sashes out of the frame to a horizontal position, as shown in dotted lines in Fig. 2, for cleaning or other purposes, the members 13 are first removed from the frame and then the lower sash C is pushed down to the bottom of the guides 11 and then swung outwardly about the pivot-forming members 17 which will automatically engage with the notches 23, as shown in Fig. 2, which will lock the sash in position and prevent the same from being raised by the balance weights 21. On account of the cords 19 being attached to the sash as previously described, the same will be provided with clearance in the grooves 18. The upper sash B is swung out in a manner similar to that above described for sash C and when the sashes are to be replaced the reverse steps are of course taken and the members 13 replaced.

Although I have herein shown and described what I now consider the preferred embodiment of my improvements, yet it will be understood that various changes and modifications may be made in the details of construction and arrangement of parts without departing from the spirit of the invention, and all such changes and modifications are contemplated as come within the scope of the claims appended hereto.

1 claim:

1. A Window construction including, in combination: a frame having sash guides in the sides thereof, each guide having a groove extending longitudinally thereof; a sash slidable in said guides; notched plates at the bottoms of each of said guides; pivot forming plates secured to the lower corners of said sash, each plate comprising a rightangled member fitting a corner of the window and having a right angled extension 17 projecting from the vertical side thereof, the

right angled portions 17 being slidable within said grooves and forming a protecting member for the weight cords; and weight cords secured to the sash, the ends of the cords being passed through perforations in said pivot forming members located in the angles formed by the extension 17, the upper edges of the right angled extensions 17 engaging in the notches of said plates when the sash is swung out from the frame whereby the sash is automatically prevented from moving upwardly under the influence of the weight cords, substantially as specilied.

2. A window construction including, in combination: a frame having sash guides therein, each of said guides having a groove extending longitudinally thereof; a sash slidable in said guides; weights secured to said sash by means of weight cords; removable notched plates forining a portion of the bottom of each of said guides; and a plate rigidly but detachably secured to each lower corner of the sash, each of said plates having an integral pivot-forming projection thereon adapted to engage with said notched plates, and also provided with a perforation through which the end of a weight cord passes, the projections forming protecting members for the weight cords and adapted to en age in said notches when the sash is swung out from the frame, substantially as specined.

LOUIS M. CARL. Witnesses:

JOSEPH Hannis, ESTHER ABRAMS.

Copies of this patent may be obtained for five cents each. by addressing the "Commissioner of Patents, Washington, D. G3 

